PowerColor 7870 Myst Edition Tahiti LE 516MH/s 69C -20% voltage

[GenTarkin]

I just ordered 2 7870 EZ powercolors ... hope to get 500mh out of them... from the looks of it looks like OC'n will be a bitch =(

getting 500mh/s is doable as long as you have good ventilation.

If you do a 2 card setup with the powercolor, its gonna need massive cooling to stay above 500mh/s.   They get very hot when right by each other.



I wanted to say I got Sapphire and Powercolor 7950s, I got powercolor 7870xt.

The Sapphire runs easily 10C  10-15% cooler than the powercolor.
Major difference when it comes to OC'ing and maximizing hashing.

Well, ventilation & cooling arent the problem. Seems like this clock configuration stuff is... =P

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[GenTarkin]

hey ninja what driver version u runnin on urs?

[greaterninja]

hey ninja what driver version u runnin on urs?

I've run 13.2, 13.3, 13.5 beta


you are using -8% power,  manual fan box checked, boost checked, fan @ 85-100%  choose any #,
gpu at 1175-1215mhz,  ram at 150mhz, right?

If you have 2 cards in crossfire or separately,  your box is gonna run much hotter and I doubt it will do -8%, 1175+mhz without insane cooling.

[GenTarkin]

hey ninja what driver version u runnin on urs?

I've run 13.2, 13.3, 13.5 beta


you are using -8% power,  manual fan box checked, boost checked, fan @ 85-100%  choose any #,
gpu at 1175-1215mhz,  ram at 150mhz, right?

If you have 2 cards in crossfire or separately,  your box is gonna run much hotter and I doubt it will do -8%, 1175+mhz without insane cooling.

I havent set them up yet, thats why I was askin to see which drivers work best in ur experience. The ram can only be dropped that far w/ afterburner right?

[greaterninja]

Just use powertune,  afterburner can drop the ram further if you override.

[GenTarkin]

Well got the 2 cards installed, by themselves... one fucking word: NIGHTMARE!
Are fucking dummy plugs needed again for windows to show a fucking GUI for remote apps cuz it just fucking goes black and no mining, unless I plug a monitor in.
Powertune is fucking worthless, no matter what I set it too, cgminer just mines @ 925mhz
I used latest beta of AB....its a management nightmare.
Fuck, why dont these cards just work like the good ol 5xxx series.

Im on 13.4 cats, AB latest beta, 7 64bit.
Its horrible all around

My other mining machine, shit when tried to put my 5xxxx series all together on it...its giving me all sorts of crap now, cgminer crashing left and right, I have no idea wtf started possesing my machines, but Im PISSED!
=(

I guess the good news is, I have the 2 7870s @ 1125/300 1.13v and doin bout 503mh/s each, using right around 400watts from wall.
Who knows how long this will last tho ugh...

One of the 7870's is horrible at clocking / voltage, otherwise my volts would be as low as 1.111v or so...

[zvs]

Well got the 2 cards installed, by themselves... one fucking word: NIGHTMARE!
Are fucking dummy plugs needed again for windows to show a fucking GUI for remote apps cuz it just fucking goes black and no mining, unless I plug a monitor in.
Powertune is fucking worthless, no matter what I set it too, cgminer just mines @ 925mhz
I used latest beta of AB....its a management nightmare.
Fuck, why dont these cards just work like the good ol 5xxx series.

Im on 13.4 cats, AB latest beta, 7 64bit.
Its horrible all around

My other mining machine, shit when tried to put my 5xxxx series all together on it...its giving me all sorts of crap now, cgminer crashing left and right, I have no idea wtf started possesing my machines, but Im PISSED!
=(

I guess the good news is, I have the 2 7870s @ 1125/300 1.13v and doin bout 503mh/s each, using right around 400watts from wall.
Who knows how long this will last tho ugh...

One of the 7870's is horrible at clocking / voltage, otherwise my volts would be as low as 1.111v or so...

delete the bin files

or you probably shouldnt have to, since you'd be using phatk on a 5xxx card and should be using poclbm or diablo on 7xxx

my 7870 is running at 1150 core 600 memory and getting 440mhash, default performance 2 voltage, which is 1.219.  it's stable up to at least 1200 core, but still doesn't come close to 500mhash.  i haven't tried past 1200.  this is using cgminer with the diablo kernel, 256 worksize, 1 vector.  messing around with intensity doesn't yield much past 8.  i'm puzzled as to how one can get 500mhash at 1125/300

anyway, it's an msi.  someone posted some review on newegg about how he had flames shooting out the back.  i guess i can believe it, 'cause this card is a pos.

[GenTarkin]

Well got the 2 cards installed, by themselves... one fucking word: NIGHTMARE!
Are fucking dummy plugs needed again for windows to show a fucking GUI for remote apps cuz it just fucking goes black and no mining, unless I plug a monitor in.
Powertune is fucking worthless, no matter what I set it too, cgminer just mines @ 925mhz
I used latest beta of AB....its a management nightmare.
Fuck, why dont these cards just work like the good ol 5xxx series.

Im on 13.4 cats, AB latest beta, 7 64bit.
Its horrible all around

My other mining machine, shit when tried to put my 5xxxx series all together on it...its giving me all sorts of crap now, cgminer crashing left and right, I have no idea wtf started possesing my machines, but Im PISSED!
=(

I guess the good news is, I have the 2 7870s @ 1125/300 1.13v and doin bout 503mh/s each, using right around 400watts from wall.
Who knows how long this will last tho ugh...

One of the 7870's is horrible at clocking / voltage, otherwise my volts would be as low as 1.111v or so...

delete the bin files

or you probably shouldnt have to, since you'd be using phatk on a 5xxx card and should be using poclbm or diablo on 7xxx

my 7870 is running at 1150 core 600 memory and getting 440mhash, default performance 2 voltage, which is 1.219.  it's stable up to at least 1200 core, but still doesn't come close to 500mhash.  i haven't tried past 1200.  this is using cgminer with the diablo kernel, 256 worksize, 1 vector.  messing around with intensity doesn't yield much past 8.  i'm puzzled as to how one can get 500mhash at 1125/300

anyway, it's an msi.  someone posted some review on newegg about how he had flames shooting out the back.  i guess i can believe it, 'cause this card is a pos.

Is yours a tahiti LE? ( has 1536 shaders) many 7870's are just pitcairn (I think it is), (1280) shaders...
Im kinda dissappointed in the power effeciency, but I guess its too be expected from a GPU thats got 1/4 of its shaders disabled.
Today will be interesting to see what temps it hits during daytime(80-90F) expected today. Overnight it was 50F and temps were around 55C @ 3000RPM

[greaterninja]

i have 2  tahiti le  powercolors  they run pretty good.   when in dual mode they run hot...so i put a 7870 tahiti with a 7950 tahiti

[zvs]

Well got the 2 cards installed, by themselves... one fucking word: NIGHTMARE!
Are fucking dummy plugs needed again for windows to show a fucking GUI for remote apps cuz it just fucking goes black and no mining, unless I plug a monitor in.
Powertune is fucking worthless, no matter what I set it too, cgminer just mines @ 925mhz
I used latest beta of AB....its a management nightmare.
Fuck, why dont these cards just work like the good ol 5xxx series.

Im on 13.4 cats, AB latest beta, 7 64bit.
Its horrible all around

My other mining machine, shit when tried to put my 5xxxx series all together on it...its giving me all sorts of crap now, cgminer crashing left and right, I have no idea wtf started possesing my machines, but Im PISSED!
=(

I guess the good news is, I have the 2 7870s @ 1125/300 1.13v and doin bout 503mh/s each, using right around 400watts from wall.
Who knows how long this will last tho ugh...

One of the 7870's is horrible at clocking / voltage, otherwise my volts would be as low as 1.111v or so...

delete the bin files

or you probably shouldnt have to, since you'd be using phatk on a 5xxx card and should be using poclbm or diablo on 7xxx

my 7870 is running at 1150 core 600 memory and getting 440mhash, default performance 2 voltage, which is 1.219.  it's stable up to at least 1200 core, but still doesn't come close to 500mhash.  i haven't tried past 1200.  this is using cgminer with the diablo kernel, 256 worksize, 1 vector.  messing around with intensity doesn't yield much past 8.  i'm puzzled as to how one can get 500mhash at 1125/300

anyway, it's an msi.  someone posted some review on newegg about how he had flames shooting out the back.  i guess i can believe it, 'cause this card is a pos.

Is yours a tahiti LE? ( has 1536 shaders) many 7870's are just pitcairn (I think it is), (1280) shaders...
Im kinda dissappointed in the power effeciency, but I guess its too be expected from a GPU thats got 1/4 of its shaders disabled.
Today will be interesting to see what temps it hits during daytime(80-90F) expected today. Overnight it was 50F and temps were around 55C @ 3000RPM

ah, that would be it.  yeah, it's not a tahiti LE.  it's a pitcairn, 1280 shaders.  best I can do is around 475mhash, and that's pushing it too far, really.  420mhash is realistic.  the card runs too hot as is.  

not worth returning either (even if I could, heh), since I already sold the games + mailed in the rebate.  i'll probably look for another 7850 or maybe get in on one of those 7950 specials.... sure as hell don't want to use this 7870 as my 'gaming' card...  sitting next to an oven sucks

[GenTarkin]

7870, should be pretty nice for gaming =)
just dont push its voltage ...

[Veldrik]

I run the older Pictairn 7870 and I'm surprised and what the tahiti's perform at.
My 7870 (Gigabyte 7870 OC) runs at 1225mhz core, 300mhz cpu, total energy consumption is 216watts/hr  (although I stuck my old nvidia 250gtx so I could play games at the same time and not interfere with the ATI so now it draws 230 when mining and not gaming).  It is bouncing between 490mh/s to 550mh/s mining BTC and running at around 62 degrees C when the gtx is in (and 58 with the gtx out) at fan speed of around 65%.
I was looking at buying more tahiti's, but now I'm only shoping for more Pictairns due to this.

[Veldrik]

PS - I use the gigabyte one now, and got rid of saphire 7870s as they were faulty for overclocking purposes (check the sapphire forums for the 7870 pictairn recall) - hence one card.  Thinking about getting either more gigabyte 7870 OC when they hit $200 again, or some 7950s as they have a slightly power consumption to mhash for only a bit worse theoretical performance to dollar ratio (I'm in australia, electricity is expensive).
nb: I did make around $70 per sapphire 7870 card when I got rid of them as I got them ex demo for around $140 - bargain!  So far that has been more profitable than mining itself

[greaterninja]

new achievement for my card, 68-69C

516MH/s -20% voltage

Powercolor 7870 Myst Edition,  its a tahiti le chip, not a regular 7870.

[Hippie Tech]

7870, should be pretty nice for gaming =)
just dont push its voltage ...

They aren't nice... They're beastly 3dmark11 16k gpu scoring HD 7930's. hehe..

We need to stop calling them 7870xt/le !

[ryantc]

still no gauge from the wall about power consumption
so it's difficult to decide whether it's efficient

[GenTarkin]

still no gauge from the wall about power consumption
so it's difficult to decide whether it's efficient

they arent that effecient. any GPU w/ decent amount of shaders laser castrated is not gonna be that effecient.

[greaterninja]

still no gauge from the wall about power consumption
so it's difficult to decide whether it's efficient

they arent that effecient. any GPU w/ decent amount of shaders laser castrated is not gonna be that effecient.

I am thinking this card at -20% voltage will use 160watts to 200 watts.  guess i'd have to get a kilo-watt to see.

[ewitte]

Running +20.  Let me try -20 these things are horrible loud/hot.  One of the two actually had to be down clocked to keep from overheating.  Replacing the fans on it next check.  OPEN case a good 6 inches a part with tripple 120mm fans zip tied to the top and repasted GPUs.  No wonder these were open box.

EDIT: Lol never mind your at 89%!  I saw some review somewhere the stock fan at 100% is like 75db!

[greaterninja]

Running +20.  Let me try -20 these things are horrible loud/hot.  One of the two actually had to be down clocked to keep from overheating.  Replacing the fans on it next check.  OPEN case a good 6 inches a part with tripple 120mm fans zip tied to the top and repasted GPUs.  No wonder these were open box.

EDIT: Lol never mind your at 89%!  I saw some review somewhere the stock fan at 100% is like 75db!

Make sure you get msi afterburner and downclock your ram to 100mhz if you are GPU / BTC mining.

I can remote in via teamviewer if you need help.  just pm me.